======================== unified (from filesystem) ========================
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======================== rawer (from filesystem) ========================

'COMM:ID3v1 Comment:XXX'                            ' 00000222 00000000 00000963'
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'TCON' (Content type, a.k.a. Genre)                 'prerock-classical or classical instruments'
'TIT2' (Title/songname/content description)         'Tchaikovsky: Concerto #1 In B-'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'Van Cliburn, Kiril Kondrashin;'
'TRCK' (Track number/Position in set)               '3'
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'TXXX:q-drums'                                      '2'
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'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
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'TXXX:replaygain_track_peak'                        '0.591725'

========================== row from database ==========================
                                              'id'  174092
                                            'path'  /data/Music/Bulk/00instruments-classical/Van Cliburn, Kiril Kondrashin; RCA Symphony Orchestra/3-Cliburn-Tchaikovsky3.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  413
                                           'genre'  prerock-classical or classical instruments
                                        'filesize'  9929796
                                           'mtime'  1637329809
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                                        'rest_str'   00instruments classical RCA Symphony Orchestra 3 Tchaikovsky3 prerock classical or classical instruments
                                      'tag_artist'  Van Cliburn, Kiril Kondrashin;
                                     'tag_release'  Tchaikovsky: Concerto #1, Op.
                                       'tag_title'  Tchaikovsky: Concerto #1 In B-
                                             'bpm'  143.925
                                    'search_title'  '1':4,5 'b':7,8 'concerto':3 'in':6 'tchaikovsky':1,2
                                   'search_artist'  'cliburn':2,3 'kiril':4 'kondrashin':5,6 'van':1
                                  'search_release'  '1':4,5 'concerto':3 'op':6,7 'tchaikovsky':1,2
                                     'search_rest'  '00instruments':1 '3':6 'classical':2 'instruments':10 'or':9 'orchestra':5 'prerock':8 'rca':3 'symphony':4 'tchaikovsky3':7
                                    'search_combo'  '00instruments':22 '1':4A,5A,18C,19C '3':27 'b':7A,8A 'classical':23 'cliburn':10B,11B 'concerto':3A,17C 'in':6A 'instruments':31 'kiril':12B 'kondrashin':13B,14B 'op':20C,21C 'or':30 'orchestra':26 'prerock':29 'rca':24 'symphony':25 'tchaikovsky':1A,2A,15C,16C 'tchaikovsky3':28 'van':9B
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-4', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-2', 'q-syn-1', 'q-chart-3', 'q-other-3', 'Q-HAP-2', 'Q-PLAY-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637329808.8561695  (2021-11-19 14:50:08)
                             'size'  9929796